After flash clone g7102 mtk 6582 touch not work need help

hi

it was hang on logo so i try flash many firmware but not done.
i flash with it
Brand : samsung
ProdName : Galaxy-Grand2
ProdModel : Galaxy-Grand2
Device : Galaxy-Grand2
AndroidVer: 4.4.2
MTKxCPU : MT6582
MTKxPRJ : ALPS.JB5.MP.V1.21

After flash set ok but touchpad not working.

have one Any solution please.